Materia’s excellent materials newsletter for May just hit my inbox (I’m not in any position to complain about the timing since I’ve been a delinquent blogger since April) and I learned about an intriguing material being produced in Dong Guan, China: PU Gel.  It’s mostly used for sporting goods such as shoes, but it can also be used for bags, power tools and electronics cases, and on clothing.  The manufacturer, Taiwan Kurim Enterprises, was founded in 1987 and has been molding PU gel and printing silicon ever since. The company …